INTERNATIONAL ONLY Two power-driven vessels are meeting in the situation as shown in illustration D037RR below. What does two short blasts from either vessel mean?

Correct Answer: Option D — "I am altering my course to port."

Rule 34(a) defines two short blasts as an indication that a vessel is altering her course to port. This signal is used to communicate a maneuver to the other vessel, even though Rule 14 generally requires meeting vessels to pass port-to-port by altering course to starboard.